Which of the following gives clues when comparing traces from different processes and correlating events of
different servers in the same data center?

A.
Thread ID

B.
Timestamp

C.
Message ID

D.
Exception from top of stack trace

Explanation:
Reading a Trace File
Timestamps give good clues:
Time stamps are real machine time values
Good when comparing traces from different processes
ftp://ftp.software.ibm.com/software/iea/content/com.ibm.iea.was_v6/waspdguide/6.0/GeneralPD/
SW5706G04_Techniques.pdf, page 26